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2025-07-11 - 23:59
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackfslot7.osadl.org (updated Fri Jul 11, 2025 12:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1034109999011,60cyclictest1151967-21python310:35:230
1034109997516,39cyclictest1089-21snmpd11:58:450
1034109997012,39cyclictest1119784-21diskstats09:40:150
103410999679,39cyclictest1174869-21kworker/0:111:20:370
103410999677,59cyclictest0-21swapper/010:30:170
1034109996626,39cyclictest1061945-21kworker/0:1+ice09:54:050
1034109995819,19cyclictest171ktimers/011:03:250
103410999580,39cyclictest1099202-21aten2.4-expect09:05:170
1034109995719,19cyclictest1116188-21/usr/sbin/munin09:35:150
1034109995718,19cyclictest1061945-21kworker/0:1+ice09:31:190
1034109995637,19cyclictest0-21swapper/007:21:330
1034109995617,19cyclictest1053476-21kworker/0:0+ice07:57:270
103410999560,16cyclictest0-21swapper/012:34:160
1034109995517,19cyclictest1037830-21diskstats07:15:150
1034109995516,39cyclictest1199421-21ntpq12:00:210
1034109995436,18cyclictest0-21swapper/011:46:050
1034109995431,20cyclictest0-21swapper/009:04:110
1034109995416,19cyclictest1077153-21/usr/sbin/munin08:25:150
1034125995314,19cyclictest0-21swapper/312:35:193
1034109995335,18cyclictest0-21swapper/011:37:110
1034109995331,19cyclictest0-21swapper/011:51:390
1034109995315,19cyclictest1183333-21kworker/0:1+ice12:17:420
1034109995315,19cyclictest1076391-21munin-run08:25:010
1034109995314,39cyclictest1145826-21ntpq10:25:190
1034109995314,39cyclictest1061945-21kworker/0:1+ice08:48:390
1034109995314,39cyclictest0-21swapper/010:54:250
1034109995314,20cyclictest0-21swapper/007:50:170
1034109995233,19cyclictest0-21swapper/009:55:090
1034109995231,19cyclictest0-21swapper/009:11:510
1034109995230,20cyclictest0-21swapper/008:31:510
1034109995230,20cyclictest0-21swapper/008:31:500
1034109995229,21cyclictest0-21swapper/007:39:150
1034109995213,39cyclictest0-21swapper/008:07:410
1034109995133,18cyclictest171ktimers/010:10:450
1034109995133,18cyclictest0-21swapper/009:29:350
1034109995132,19cyclictest875-21mta-sts-daemon10:58:150
1034109995132,19cyclictest0-21swapper/007:41:070
1034109995129,19cyclictest0-21swapper/008:11:430
1034109995129,19cyclictest0-21swapper/007:12:390
1034109995113,19cyclictest1182636-21ntp_states11:30:210
1034109995112,39cyclictest1183333-21kworker/0:1+ice12:11:190
1034109995112,20cyclictest1147214-21kworker/0:3+ice10:43:510
1034109995112,19cyclictest0-21swapper/008:35:030
1034109995112,19cyclictest0-21swapper/007:33:090
1034109995031,19cyclictest0-21swapper/011:40:450
1034109995012,19cyclictest1172388-21sh11:15:010
1034109995012,19cyclictest1169609-21munin-run11:10:010
1034109994931,18cyclictest0-21swapper/010:21:490
1034109994931,18cyclictest0-21swapper/010:18:150
1034109994931,18cyclictest0-21swapper/009:19:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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